2.6 Line symmetry Look at the shapes below. The symmetry of the shape on the left and its relationship to the shape on the right can be thought of in two ways: Fold the left-hand shape along the central line. Then one side lies exactly on top of the other, and gives the shape on the right. Imagine a mirror placed along the central dotted line. The reflection in the mirror gives the other half of the shape. 1 Overview A fundamental concept in mathematics is that of a function. Consider, for example, the function f defined by
This is an example of a real function, because it associates with a given real number World in transition: Migration and Trade Energy efficiency: hospitals Environmental responsibility The science of evolution Studying mammals: Return to the water Introduction Nature Matters considers environmental responsibility and what may matter from a caring perspective and an accountability perspective. A reading by Andrew Light reflects on four key debates in environmental ethics regarding the way in which nature is valued, and prompts the question on how such debates might inform environmental responsibility. Section 2 examines the formal processes involved in developing accountability in the context of sustainable development. The persuasiveness of t Test kits for water analysis Surface water Energy resources: Tidal energy An introduction to biological systematics Introduction This course provides an introduction to global warming. We will be considering the history of global warming by looking at the pattern of ice ages and analysis of recorded temperatures. We will aim to gather meaningful information from this data. We will briefly assess the impact and influence of humans on global warming and, finally, we will examine climate models and how to predict future changes. This OpenLearn course provides a sample of postgraduate study in Author(s): Environmental management and organisations Migration Changing cities Exploring philosophy: faking nature Earth's physical resources: petroleum The oceans Neighbourhood nature
What does it mean to be poor, or an immigrant? What form should Aid take? This album begins to explore the complex issues of international development in a globalised world, starting with a look at schemes which attempt to alleviate poverty. Small business owners are empowered by micro-financing in Glasgow, while in Argentina a disastrous economic collapse has led to people taking matters into their own hands by creating an alternative social exchange currency. Migrant communities, such as Greek
What strategies can hospitals adopt to reduce their impact on the local and global environment? How might they reduce the carbon footprint of vehicles transporting patients, visitors and goods? This album visits three hospitals which have adopted green approaches to energy efficiency, by cutting electricity consumption, reducing traffic volume, and even generating their own renewable energy. This material forms part of The Open University course T206 Energy for a sustainable future.Author(s):
Complex questions of environmental responsibility are increasingly raised in times of change and uncertainty. The tracks on this album illustrate the need for nurturing a fresh sense of care for our environment as well as more appropriate forms of accountability. We demonstrate the necessity of addressing issues of entitlements, rights, obligations and duties if we are to critically and carefully shape our values in doing environmental responsibility and being environmentally responsible. This m
This free course, The science of evolution, debates the issues surrounding the science of evolution and religion.
First published on Wed, 16 Mar 2016 as The science of evolution. To find out more visit The Open University's Author(s):
Some of the most unusual and versatile of all the mammals are the groups that live, feed and reproduce underwater. In this free course, Studying mammals: Return to the water, we will see how these formerly land-based mammals adapted to a return to the water, discussing such challenges as breathing, movement and communication. This is the seventh course in the Studying mammals series.
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This free course, Test kits for water analysis, steps outside the laboratory to look at some examples of analytical procedures being carried out in the field using commercial test kits. These quick tests provide results on-site, extending the options available to analysts. The methods used are chemical or microbiological in nature, made portable by microelectronics.
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Water is arguably the most important physical resource as it is the one that is essential to human survival. Understanding the global water cycle and how we use water is essential to planning a sustainable source of water for the future. In the UK there are areas where water supplies are limited, as shown by recent droughts. Globally, there are many areas that do not have enough water to support the current population adequately. Decisions will have to be made on the best way to use water in a w
The rise and fall of ocean tides result from the combined gravitational pull on water by the Moon and, to a lesser extent, the Sun, which exerts a force on water directed towards the two astronomical bodies. These gravitational effects combine with centrifugal forces that result from the Earth and the Moon orbiting each other. All of which makes tidal change a complex process. Energy resources: Tidal energy, is a free course that considers the power of the ocean tides as a potential source of us
This free course, An introduction to biological systematics, is concerned with macroevolution the patterns and processes of evolution above the species level. A crucial consideration in macroevolutionary studies is that of the evolutionary relationships (phylogeny) of the organisms in question. The course begins with an introduction to the scope of macroevolutionary studies and illustrates methods of reconstructing phylogeny, from both morphological and molecular data.
It is believed that environmental management requires action at all levels and by organisations of all types and sizes. However it is not always clear what we mean by environmental management and the role that organisations do and could play. This free course, explores the different interpretations and viewpoints involved by using system thinking to provide a framework with which to better understand environmental management and organisations.
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Migration is a free course looking at the migrations of animals, with special reference to birds, and also introducing the themes of movement, selection and homeostasis.
First published on Thu, 07 Sep 2017 as Migration. To find out more visit The Open University's Author(s):
Urban processes are increasingly held to be responsible for causing a variety of problems environmental destruction, social injustice, global financial instability. They are also identified as harbouring the potential to meet these challenges through urban experiments in sustainable living, creative culture and alternative economies. This free course, Changing cities, explores how contemporary processes of urbanisation challenge how we think about political agency, providing a framework for the
Commercial exploitation of nature, such as mining, fracking, or generating hydro-electric power, often damages the way the natural environment looks. What if the environment could be restored to exactly how it looked before? Would that mean that no damage had been done, that the natural environment was as valuable as it had been before the commercial exploitation? This free course, Exploring philosophy: faking nature, examines ‘the restoration thesis’, and provides an insight into philosophi
The discovery of the world's first major underground oil field in Pennsylvania, USA in 1859 sparked the continuing era of the world's reliance on cheap energy from oil and gas. This free course, Earth's physical resources: petroleum, begins by examining the geological characteristics of petroleum and the key ingredients necessary to form oil and gas accumulations. Then there is a brief description of industrial operations during the life cycle of an oil field, starting with subsurface analysis a
The oceans cover more than 70 per cent of our planet. In this free course, The oceans, you will learn about the depths of the oceans and the properties of the water that fills them, what drives the ocean circulation and how the oceans influence our climate.
First published on Tue, 26 Jul 2016 as Author(s):
There is a fascinating world of nature all around us which we can see if we know how to look for it. Wherever you live, be it in a city or the countryside, you will find areas that support a range of wildlife. This free course, Neighbourhood nature, will provide you with basic scientific and observational skills so that you can go into your local neighbourhood to discover the animals and plants in open spaces. You will learn how to observe, identify and record the wildlife around you, building u
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